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<a class="jxr_linenumber" name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> com.katesoft.scale4j.common.jmx;
<a class="jxr_linenumber" name="2" href="#2">2</a>   
<a class="jxr_linenumber" name="3" href="#3">3</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.log.LogFactory;
<a class="jxr_linenumber" name="4" href="#4">4</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.log.Logger;
<a class="jxr_linenumber" name="5" href="#5">5</a>   
<a class="jxr_linenumber" name="6" href="#6">6</a>   <strong class="jxr_keyword">import</strong> javax.management.JMX;
<a class="jxr_linenumber" name="7" href="#7">7</a>   <strong class="jxr_keyword">import</strong> javax.management.MBeanServerConnection;
<a class="jxr_linenumber" name="8" href="#8">8</a>   <strong class="jxr_keyword">import</strong> javax.management.MalformedObjectNameException;
<a class="jxr_linenumber" name="9" href="#9">9</a>   <strong class="jxr_keyword">import</strong> javax.management.ObjectName;
<a class="jxr_linenumber" name="10" href="#10">10</a>  <strong class="jxr_keyword">import</strong> javax.management.remote.JMXConnector;
<a class="jxr_linenumber" name="11" href="#11">11</a>  <strong class="jxr_keyword">import</strong> javax.management.remote.JMXConnectorFactory;
<a class="jxr_linenumber" name="12" href="#12">12</a>  <strong class="jxr_keyword">import</strong> javax.management.remote.JMXServiceURL;
<a class="jxr_linenumber" name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="14" href="#14">14</a>  
<a class="jxr_linenumber" name="15" href="#15">15</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> com.katesoft.scale4j.common.utils.AssertUtility.assertNotNull;
<a class="jxr_linenumber" name="16" href="#16">16</a>  
<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_javadoccomment"> * This class allows you to invoke remote jmx operation. This class marked as abstract and implementers will override doInvoke method,</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <em class="jxr_javadoccomment"> * all other stuff(opening</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>  <em class="jxr_javadoccomment"> * connection, creating proxy, closing connection) is covered by this class.</em>
<a class="jxr_linenumber" name="21" href="#21">21</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="22" href="#22">22</a>  <em class="jxr_javadoccomment"> * @author kate2007</em>
<a class="jxr_linenumber" name="23" href="#23">23</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> JmxOperationInvoker&lt;T&gt;
<a class="jxr_linenumber" name="25" href="#25">25</a>  {
<a class="jxr_linenumber" name="26" href="#26">26</a>      <strong class="jxr_keyword">protected</strong> <a href="../../../../../com/katesoft/scale4j/log/Logger.html">Logger</a> logger = LogFactory.getLogger(getClass());
<a class="jxr_linenumber" name="27" href="#27">27</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> String url;
<a class="jxr_linenumber" name="28" href="#28">28</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> String objectName;
<a class="jxr_linenumber" name="29" href="#29">29</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Class&lt;T&gt; mBeanInterface;
<a class="jxr_linenumber" name="30" href="#30">30</a>  
<a class="jxr_linenumber" name="31" href="#31">31</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/katesoft/scale4j/common/jmx/JmxOperationInvoker.html">JmxOperationInvoker</a>(String url,
<a class="jxr_linenumber" name="32" href="#32">32</a>                                 String objectName,
<a class="jxr_linenumber" name="33" href="#33">33</a>                                 Class&lt;T&gt; mBeanInterface)
<a class="jxr_linenumber" name="34" href="#34">34</a>      {
<a class="jxr_linenumber" name="35" href="#35">35</a>          assertNotNull(url, <span class="jxr_string">"you should specify jmx connection url"</span>);
<a class="jxr_linenumber" name="36" href="#36">36</a>          assertNotNull(objectName, <span class="jxr_string">"you should specify object name"</span>);
<a class="jxr_linenumber" name="37" href="#37">37</a>          assertNotNull(mBeanInterface, <span class="jxr_string">"you should interface to be proxied"</span>);
<a class="jxr_linenumber" name="38" href="#38">38</a>          <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="39" href="#39">39</a>          <strong class="jxr_keyword">this</strong>.url = url;
<a class="jxr_linenumber" name="40" href="#40">40</a>          <strong class="jxr_keyword">this</strong>.objectName = objectName;
<a class="jxr_linenumber" name="41" href="#41">41</a>          <strong class="jxr_keyword">this</strong>.mBeanInterface = mBeanInterface;
<a class="jxr_linenumber" name="42" href="#42">42</a>      }
<a class="jxr_linenumber" name="43" href="#43">43</a>  
<a class="jxr_linenumber" name="44" href="#44">44</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment">     * client should call this method to invoke remote operation.</em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="47" href="#47">47</a>  <em class="jxr_javadoccomment">     * @return true if mBean with name {@link this#objectName} i registered, else false.</em>
<a class="jxr_linenumber" name="48" href="#48">48</a>  <em class="jxr_javadoccomment">     * @throws IOException                  if the connector client or the connection cannot be made because of a communication problem.</em>
<a class="jxr_linenumber" name="49" href="#49">49</a>  <em class="jxr_javadoccomment">     * @throws MalformedObjectNameException string passed as a objectName parameter does not have the right format</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>      @SuppressWarnings({<span class="jxr_string">"unchecked"</span>})
<a class="jxr_linenumber" name="52" href="#52">52</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> invoke() <strong class="jxr_keyword">throws</strong> IOException, MalformedObjectNameException
<a class="jxr_linenumber" name="53" href="#53">53</a>      {
<a class="jxr_linenumber" name="54" href="#54">54</a>          <strong class="jxr_keyword">boolean</strong> mbeanRegistered = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="55" href="#55">55</a>          logger.info(<span class="jxr_string">"connecting to remote JMX server using url = %s"</span>, url);
<a class="jxr_linenumber" name="56" href="#56">56</a>          JMXServiceURL jmxServiceURL = <strong class="jxr_keyword">new</strong> JMXServiceURL(url);
<a class="jxr_linenumber" name="57" href="#57">57</a>          JMXConnector jmxConnector = JMXConnectorFactory.connect(jmxServiceURL);
<a class="jxr_linenumber" name="58" href="#58">58</a>          MBeanServerConnection mBeanServerConnection = jmxConnector.getMBeanServerConnection();
<a class="jxr_linenumber" name="59" href="#59">59</a>          ObjectName mbeanName = <strong class="jxr_keyword">new</strong> ObjectName(objectName);
<a class="jxr_linenumber" name="60" href="#60">60</a>          <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="61" href="#61">61</a>              <strong class="jxr_keyword">if</strong> (mBeanServerConnection.isRegistered(mbeanName)) {
<a class="jxr_linenumber" name="62" href="#62">62</a>                  Object proxy = JMX.newMBeanProxy(mBeanServerConnection, mbeanName, mBeanInterface, <strong class="jxr_keyword">true</strong>);
<a class="jxr_linenumber" name="63" href="#63">63</a>                  doInvoke((T) proxy);
<a class="jxr_linenumber" name="64" href="#64">64</a>              }
<a class="jxr_linenumber" name="65" href="#65">65</a>              <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="66" href="#66">66</a>                  logger.warn(<span class="jxr_string">"mbean %s is not registered"</span>, mbeanName);
<a class="jxr_linenumber" name="67" href="#67">67</a>                  mbeanRegistered = false;
<a class="jxr_linenumber" name="68" href="#68">68</a>              }
<a class="jxr_linenumber" name="69" href="#69">69</a>          }
<a class="jxr_linenumber" name="70" href="#70">70</a>          <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="71" href="#71">71</a>              <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="72" href="#72">72</a>                  jmxConnector.close();
<a class="jxr_linenumber" name="73" href="#73">73</a>              }
<a class="jxr_linenumber" name="74" href="#74">74</a>              <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="75" href="#75">75</a>                  logger.warn(<span class="jxr_string">"unable to close jmx connection %s"</span>, e);
<a class="jxr_linenumber" name="76" href="#76">76</a>              }
<a class="jxr_linenumber" name="77" href="#77">77</a>          }
<a class="jxr_linenumber" name="78" href="#78">78</a>          <strong class="jxr_keyword">return</strong> mbeanRegistered;
<a class="jxr_linenumber" name="79" href="#79">79</a>      }
<a class="jxr_linenumber" name="80" href="#80">80</a>  
<a class="jxr_linenumber" name="81" href="#81">81</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="82" href="#82">82</a>  <em class="jxr_javadoccomment">     * perform actual actions.</em>
<a class="jxr_linenumber" name="83" href="#83">83</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_javadoccomment">     * @param proxy mbeanInterface proxy</em>
<a class="jxr_linenumber" name="85" href="#85">85</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="86" href="#86">86</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">void</strong> doInvoke(T proxy);
<a class="jxr_linenumber" name="87" href="#87">87</a>  }
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